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  1. #1
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    Lithium and Merc R motors ?

    Anyone running a lithium battery with the new V8 Merc's.
    I had recently purchased a new 125 AH lithium now I'm repowering with a 250R... Mercury recommends an AGM--- Sure hate to pull that high dollar light wt investment.

  2. #2
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    My boss has 2 36 volt lithium batteries linked together for his trolling and loves them, with the stealth charger they never die, he told me that the 12 volt batteries are crap and a waste of money, did not perform like he had hoped, if you let them set to long with out use you have to(awaken) them before they will operate, I would not buy a12 volt for the money, stay agm
    97 xb2002t-3.4 etech 250 ho

  3. #3
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    Quote Originally Posted by Will hedrick View Post
    My boss has 2 36 volt lithium batteries linked together for his trolling and loves them, with the stealth charger they never die, he told me that the 12 volt batteries are crap and a waste of money, did not perform like he had hoped, if you let them set to long with out use you have to(awaken) them before they will operate, I would not buy a12 volt for the money, stay agm
    There is nothing inherently wrong with a 12 volt lithium battery. A 36 volt battery is made up of the same cells that make up a 12 volt.
    Erik Kiser

  4. #4
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    Quote Originally Posted by patchesII View Post
    There is nothing inherently wrong with a 12 volt lithium battery. A 36 volt battery is made up of the same cells that make up a 12 volt.
    I can't disagree, he told me that he would not own another 12 to run as a cranking battery, it gave him to many problems as a cranking battery.
    97 xb2002t-3.4 etech 250 ho

  5. #5
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    Not concerned with the trolling batteries- I have three 12 volt 50 Ah for a 36 volt trolling mtr that are awesome.
    My concern is with the starting battery... Mercury HIGHLY recommends an AGM of 975 or greater CCA .. The 125AH lithium has worked fine with my old 3.2 ltr 300.

    What I'm hearing---
    The motor puts out too much voltage when running for the BMS. It could trip the BMS high voltage cutoff. When that happens your battery shuts off and then the motor shuts off. Not something you want to happen at wide open throttle

  6. #6
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    Agreed,
    97 xb2002t-3.4 etech 250 ho

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